No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form
or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior
written permission of SMA America,LLC.
Neither SMA America,LLC nor SMA Solar Technology Canada Inc. makes representations, express
or implied, with respect to this documentation or any of the equipment and/or software it may
describe, including (with no limitation) any implied warranties of utility, merchantability, or fitness for
any particular purpose. All such warranties are expressly disclaimed. Neither SMA America,LLC nor
its distributors or dealers nor SMA Solar Technology Canada Inc. nor its distributors or dealers shall
be liable for any indirect, incidental, or consequential damages under any circumstances.
(The exclusion of implied warranties may not apply in all cases under some statutes, and thus the
above exclusion may not apply.)
Specifications are subject to change without notice. Every attempt has been made to make this
document complete, accurate and up-to-date. Readers are cautioned, however, that
SMAAmerica,LLC and SMA Solar Technology Canada Inc. reserve the right to make changes
without notice and shall not be responsible for any damages, including indirect, incidental or
consequential damages, caused by reliance on the material presented, including, but not limited to,
omissions, typographical errors, arithmetical errors or listing errors in the content material.
All trademarks are recognized even if these are not marked separately. Missing designations do not
mean that a product or brand is not a registered trademark.
The Bluetooth
®
word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and
any use of such marks by SMA America,LLC and SMA Solar Technology Canada Inc. is under
license.
SMA America, LLC
3801 N. Havana Street
Denver, CO 80239 U.S.A.
SMA Solar Technology Canada Inc.
2425 Matheson Blvd. E
8th Floor
Mississauga, ON L4W 5K5
Canada
Installation GuideFMK20-30HFUS-eng-IUS1116103
Page 4
Important Safety InstructionsSMA America, LLC
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the following products:
•Flush‑Mount Kit
This manual must be followed during installation and maintenance.
The product is designed and tested according to international safety requirements, but as with all
electrical and electronic equipment, certain precautions must be observed when installing and/or
operating the product. To reduce the risk of personal injury and to ensure the safe installation and
operation of the product, you must carefully read and follow all instructions, cautions and warnings
in this manual.
Warnings in this document
A warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice,
which, if not correctly performed or adhered to, could result in damage to or destruction of part or all
of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
NOTICE is used to address practices not related to personal injury.
4FMK20-30HFUS-eng-IUS111610Installation Guide
Page 5
SMA America, LLCImportant Safety Instructions
Other Symbols in this document
In addition to the safety and hazard symbols described on the previous pages, the following symbol
is also used in this manual:
Information
This symbol accompanies notes that call attention to supplementary information that you must
know and use to ensure optimal operation of the system.
General Warnings
General Warnings
All electri cal installations m ust be done in accordance with the local and NationalElectrical Code
ANSI/NFPA 70 or the Canadian Electrical Code® CSAC22.1. This document does not and is not
intended to replace any local, state, provincial, federal or national laws, regulation or codes
applicable to the installation and use of the product, including without limitation applicable
electrical safety codes. All installations must conform with the laws, regulations, codes and
standards applicable in the jurisdiction of installation. SMA assumes no responsibility for the
compliance or noncompliance with such laws or codes in connection with the installation of the
product. Before installing or using the product, read all of the instructions, cautions, and warnings
in this manual.
These instructions are valid for the Flush‑Mount Kit for the following inverters:
• Sunny Boy 2000HF-US (SB 2000HFUS‑30)
• Sunny Boy 2500HF-US (SB 2500HFUS‑30)
• Sunny Boy 3000HF-US (SB 3000HFUS‑30)
1.2 Target Group
This manual is for qualified personnel. Qualified personnel received training and have demonstrated
skills and knowledge in the construction and operation of this device. Qualified personnel are trained
to deal with the dangers and hazards involved in installing electric devices.
1.3 Additional Information
Detailed information on the installation and commissioning of the inverter can be found in the
installation guide for the inverter.
1.4 Nomenclature
In this document SMA America Production, LLC is referred to in the following as SMA.
In this document, the inverters Sunny Boy 2000HF-US, Sunny Boy 2500HF-US, and
Sunny Boy 3000HF-US are hereafter referred to as Sunny Boy.
Installation GuideFMK20-30HFUS-eng-IUS1116109
Page 10
SafetySMA America, LLC
2Safety
2.1 Appropriate Usage
The Flush‑Mount Kit is an accessory for the inverters SB2000HF-US, SB2500HF-US,
and SB3000HF-US. The Flush‑Mount Kit enables the inverter to be fixed between the posts of
lightweight walls. An installation depth of at least 3
The Flush‑Mount Kit must only be used in accordance with these instructions. Any other application
can lead to personal injuries or damage to equipment.
2.2 Safety Instructions
Risk of fatal injury by electric shock when working on this inverter.
Any work on the inverter must only be carried out in the absence of voltage and in compliance with
the five safety rules.
• Disconnect.
• Ensure that the device cannot be reconnected.
• Ensure that no voltage is present in the system.
• Ground and short-circuit.
• Cover or shield any adjacent live parts.
9
⁄16in. (90 mm) is needed for the installation.
Risk of fatal injury by proceeding incorrectly when working on this inverter.
• All work on the inverter must only be carried out as described in the installation guide.
• All safety instructions in the installation guide of the inverter and these instructions must be
observed.
• All work on the inverter may only be performed by qualified personnel.
Risk of crushing due to falling individual parts of the Flush‑Mount Kit.
• The weight of the individual parts must be a maximum of 7 lbs. (3 kg) during mounting.
• Always use both hands to lift individual parts of the Flush‑Mount Kit.
10FMK20-30HFUS-eng-IUS111610Installation Guide
Page 11
SMA America, LLCSafety
Risk of injury due to sharp corners and edges on individual parts of the Flush‑Mount Kit.
• Only unpack and assemble the Flush‑Mount Kit while wearing suitable safety clothing and
gloves.
Installation GuideFMK20-30HFUS-eng-IUS11161011
Page 12
Flush‑Mount KitSMA America, LLC
3Flush‑Mount Kit
3.1 Scope of Delivery
Check the scope of supply for completeness and any visible external damage.
Please contact your dealer if the scope of delivery is not complete or you find any damage.
Abbildung1:Scope of Delivery
ObjectQuantityDescription
A1Cover frame
B1Installation tray
C1Installation guide
D3Washer, pre-assembled in installation tray
E3Hexagon nut, M6, pre-assembled in installation tray
12FMK20-30HFUS-eng-IUS111610Installation Guide
Page 13
SMA America, LLCInstallation
4 Installation
4.1 Selecting the Mounting Location
Danger to life due to fire or explosion.
• Do not mount the Flush‑Mount Kit on combustible materials.
• Do not mount the Flush‑Mount Kit in areas in which highly inflammable materials are stored.
• Do not mount the Flush‑Mount Kit in potentially explosive atmospheres.
Noise pollution
The inverter can cause audible vibrations in operation. Lightweight walls can increase these
vibrations. This can be perceived as an annoyance in living areas. Do not mount in lightweight
walls in living areas.
• Select a mounting location in which the inverter can be easily accessed for service work.
• Select a mounting location which has enough space for the air to circulate freely.
• Select a mounting location with an ambient temperature less than +112 °F (+45 °C).
• Mount the Flush‑Mount Kit and inverter in an area protected against direct sunlight and
moisture.
• Select a mounting wall that can bear the weight of the Flush‑Mount Kit and the inverter.
• Minimum distance between the posts 1 ft. 2 in. (355 mm).
• Select a vertical mounting location.
• Mount the Flush‑Mount Kit with the connection area facing downwards.
Installation GuideFMK20-30HFUS-eng-IUS11161013
Page 14
InstallationSMA America, LLC
1 ft. 1
15
/
16
354 mm
in.
7
3
/
8
187,2 mm
in.
1 ft.
13
/
16 in.
326,3 mm
3 ft. 11
1,197
1
/
8 in.
mm
1
16
/
16 in.
29,5 mm
1
5
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8"
40 mm
2 ft. 7
9
/
32 in.
794,5 mm
2 in.
51 mm
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190,5 mm
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1 ft. 9
543,5
13
/
32 in.
mm
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/
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90,5 mm
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114,5 mm
7 9/
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192,3 mm
in.
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1
/2 in. (3x)40 mm
3 1
/2 in.
88,5 mm
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15
/
16 in.
75 mm
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5
/32
in.
55 mm
2 3
/8 in.
60 mm
3
19
/
32 in.
90,5 mm
7
/32 in.
5,2 mm
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15
/
16
354 mm
in.
7
3
/
8
187,2 mm
in.
1 ft.
13
/
16 in.
326,3 mm
3 ft. 11
1,197
1
/
8 in.
mm
1
16
/
16 in.
29,5 mm
1
5
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8"
40 mm
2 ft. 7
9
/
32 in.
794,5 mm
2 in.
51 mm
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32
190,5 mm
in.
10
206
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mm
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543,5
13
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32 in.
mm
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/
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90,5 mm
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17
/32 in.
114,5 mm
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192,3 mm
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1
/2 in. (3x)
40 mm
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/2 in.
88,5 mm
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75 mm
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55 mm
2 3
/8 in.
60 mm
3
19
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90,5 mm
7
/32 in.
5,2 mm
4.2 Dimensions
Abbildung2:Dimensions of installation tray
14FMK20-30HFUS-eng-IUS111610Installation Guide
Page 15
SMA America, LLCInstallation
1'-5
3
/
8in.
440 mm
3'-9 3
/
4 in.
1162 mm
3'-8
3
/
4 in.
1137 mm
1 in.
25 mm
1'-4
5
/
8 in.
422,5 mm
1'-10
7
/
8 in.
581 mm
3/
4 in.
17,5 mm
Abbildung3:Dimensions of cover frame
4.3 Installing the Flush‑Mount Kit
1. Mount the installation tray (see section 4.4).
2. If the inverter is mounted at a later date, mount the cover frame (see section ).
3. Mount the wall mounting bracket (see section 4.5).
4. Mount the inverter (see section 4.6).
5. Connect the AC cable and DC cable to SMA DC‑Disconnect (see section 4.7.1).
6. Mount the cover frame (see section 4.8).
Installation GuideFMK20-30HFUS-eng-IUS11161015
Page 16
InstallationSMA America, LLC
4.4 Mounting the Installation Tray
Additional mounting material (not included in the scope of delivery):
• 10 screws with a maximum diameter of
• At least 10 washers
Selecting the installation height
So that the display of the inverter is at eye-level after mounting, mount the Flush‑Mount Kit with
its lower edge about 3 ft. 3 in. (approx. 1 000 mm) above the ground.
1. Position the installation tray between two upright
profiles. While doing so, ensure that the installation
tray is level with the upright profiles.
2. Mark the position of the holes.
3. Drill the holes.
5
⁄16in. (8 mm).
16FMK20-30HFUS-eng-IUS111610Installation Guide
Page 17
SMA America, LLCInstallation
4. Secure the installation tray to the upright profiles
with at least six screws and washers.
Tolerance compensation
If the distance between the upright profiles
exceeds the width of the installation tray, you
can place one or more washers between the
upright profiles and the installation tray. This
prevents the installation tray from moving.
4.5 Attaching the Wall Mounting Bracket
Wall mounting bracket of the inverter
The wall mounting bracket is included in the inverter's scope of delivery.
1. Unscrew the three hexagon nuts and three washers
from the threaded bolts of the installation tray.
2. Insert the wall mounting bracket into the threaded
bolts of the installation tray.
3. Secure the wall mounting bracket with three
washers and three hexagon nuts. Tighten the nuts
with a torque of (6 Nm).
Installation GuideFMK20-30HFUS-eng-IUS11161017
Page 18
InstallationSMA America, LLC
One and Two String Wiring
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PLUG-IN GROUN
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PLUG-IN GROUNDING
4.6 Mounting the Inverter
Risk of crushing due to falling individual parts of the inverter and during installation.
• The weight of the individual parts must be a maximum of 40 lbs. (18 kg) during mounting.
• Always use both hands to lift individual parts of the inverter.
Observe the installation guide of the inverter.
• Carry out all mounting and installation work on the inverter in accordance with the installation
guide of the inverter.
Removing the filler-plugs
You can insert the AC cable and the DC cable from
underneath or from behind into the
SMA DC‑Disconnect. Remove the corresponding
filler-plugs before mounting the
SMA DC‑Disconnect.
18FMK20-30HFUS-eng-IUS111610Installation Guide
Page 19
SMA America, LLCInstallation
O
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1. Insert the SMA DC‑Disconnect from the front into
the wall mounting bracket until it audible locks into
place on the left and on the right.
2. Insert the inverter from above into the wall
mounting bracket and insert SMA DC‑Disconnect.
Do not damage or squash the terminals and
connection cable.
Installation GuideFMK20-30HFUS-eng-IUS11161019
Page 20
InstallationSMA America, LLC
4.7 Installing the Cable Ducts
Abbildung4:Openings for cable ducts
ItemDescription
AOpenings for DC cable ducts
BOpenings for AC cable ducts
1. Feed the DC cable duct through the holes of the
installation tray and into the SMA DC‑Disconnect.
Secure it there.
2. Feed the AC cable duct through the hole of the
installation tray and into the SMA DC‑Disconnect.
Secure it there.
20FMK20-30HFUS-eng-IUS111610Installation Guide
Page 21
SMA America, LLCInstallation
4.7.1 Connecting the AC Cable and DC Cable to
SMA DC‑Disconnect
Risk of fatal injury by electric shock when working on this inverter.
The inverter works internally with high voltages.
• The connection of SMA DC‑Disconnect may only be carried out by qualified personnel.
1. Connect the AC cable and DC cable to the SMA DC‑Disconnect as described in the installation
guide of the inverter.
Installation GuideFMK20-30HFUS-eng-IUS11161021
Page 22
InstallationSMA America, LLC
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x
Rang
e of in
put op
era
ting
voltag
e
xx
x
-x
xx
V
d
c
M
PPT R
ang
e
of inp
ut operating
D
C
volta
ge*
x
xx
-x
x
x V
d
c (@
x
x
x
V
a
c)
x
x
x-x
x
x
V
d
c (@
x
x
x
V
ac)
M
a
x. o
pera
ting current
x
x A
d
c
This unit conta
ins a R
esidua
l C
urrent
M
o
nitor, Iso
latio
n M
onitor a
nd
Interrupteur
E
N
C
LO
S
U
RE Type 3
R (IP5
4
)
*
Fo
r m
o
re details and
for tightening to
rq
ue,
allo
w
a
ble
w
ire siz
e and typ
e see
the O
perator
‘s M
a
nual
U
t
i
li
t
y
I
n
t
e
r
a
c
t
i
v
e
1
P
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a
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e
I
n
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e
r
t
e
r
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e
s
te
d
T
o
C
o
m
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ly
W
ith
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C
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ta
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F
O
R
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N
D
O
F
F
I
C
E
U
S
E
Utility interactive 1-phase inverter
x
x
xxx
x
x
x
x
4.7.2 Affixing the Label with Technical Data
The type label of the inverter is located on the right-hand side of the inverter enclosure.
The Flush‑Mount Kit can cover the type label when the inverter is installed.
The inverter's scope of delivery includes a label with the technical data of the inverter, which you affix
to the Flush‑Mount Kit. This means that the technical data of the inverter can also be read from the
Flush‑Mount Kit.
1. The label is included in the scope of delivery.
2. Select a suitable location to affix the label so that the label is visible after the inverter and cover
frame have been mounted.
3. Clean the location of the sticker.
4. Affix the label.
22FMK20-30HFUS-eng-IUS111610Installation Guide
Page 23
SMA America, LLCInstallation
www.SMA-America.com
SUNNY BOY
SB XXXXHFUS-XX
xxxxxxxxxx
Model
Serial No.
Date of manufacture
xx/xxxx
Max. continous output Power*XXXX Wac
Operating voltage range (Vac)*
MINNOMINALMAX
xxxxxxxxx
Operating frequency range (Hz)*
MINNOMINALMAX
xx.xxx.xxx.x
Max. continous output current* xx Aac
Output power factor x
Range of input operating voltage xxx-xxx Vdc
MPPT Range of input operating DC voltage*
xxx-xxx Vdc (@xxx Vac)
xxx-xxx Vdc (@xxx Vac)
Max. operating current xx Adc
This unit contains DC-Ground Fault Detector
and Interrupter
DC Disconnect Max. Operating Current 25 A
*For more details and for tightening torque,
allowable wire size and type see
the Operator‘s Manual
Utility interactive 1-phase inverter
xxxxxxxxx
Oper, temp, range *- xx°F to + xxx °F (- xx °C to + xx °C)
.
Installation GuideFMK20-30HFUS-eng-IUS11161023
Page 24
InstallationSMA America, LLC
4.8 Mounting the Cover Frame
Risk of fire due to inflammable objects behind the cover frame
• Before mounting the cover frame, remove any inflammable objects from the installation tray.
Selecting the screws
1
To secure the cover frame, you need six countersunk bolts with a maximum diameter of
(4.5 mm). Select the length of the screw on the basis of the wall material.
1. Hold the cover frame on the inverter and the
installation tray in such a way that the guiding pins
fit into the intended holes on the installation tray.
2. Secure the cover frame to the upright profiles with
six countersunk bolts.
⁄6in.
3. Remove the protective film from the cover frame.
24FMK20-30HFUS-eng-IUS111610Installation Guide
Page 25
SMA America, LLCDisassembly
5Disassembly
5.1 Disassembling the Cover Frame
Risk of fatal injury by electric shock when working on this inverter.
The inverter works internally with high voltages.
• Disconnection of the inverter may only be performed by qualified personnel.
1. Disconnect the inverter as described in the installation guide of the inverter.
2.
Risk of burning if hot enclosure parts are touched.
The enclosure lid and the enclosure body of the inverter may get hot during operation.
• Wait until the enclosure of the inverter cools down before disasse mbling the cover frame.
3. Hold the cover frame with one hand and loosen the
screws on the cover frame.
4. Remove the cover frame.
Installation GuideFMK20-30HFUS-eng-IUS11161025
Page 26
DisassemblySMA America, LLC
5.2 Disassembling the Inverter
Risk of fatal injury by electric shock when working on this inverter.
The inverter works internally with high voltages.
• The disassembly of the inverter and the SMA DC‑Disconnect may only be carried out by
qualified personnel.
Risk of burning if hot enclosure parts are touched.
The enclosure of the inverter and the Flush‑Mount Kit may get hot during operation.
• Wait until the Flush‑Mount Kit and the enclosure of the inverter cool down before
disassembling the inverter.
1. Disassemble the inverter as described in the installation guide of the inverter.
2. Disassemble the DC‑Disconnect as described in the installation guide of the inverter.
5.3 Disassembling the Installation Tray
1. Loosen the nuts on the wall mounting bracket of the inverter and remove with the washers.
2. Remove the wall mounting bracket.
3. Hold the installation tray with one hand and loosen
the screws.
4. Remove the installation tray.
26FMK20-30HFUS-eng-IUS111610Installation Guide
Page 27
SMA America, LLCTechnical Data
6Technical Data
General data of installation tray
9
Dimensions3
Weight6
MaterialAluminum
Minimum distance between the posts1 ft. 2 in. (355 mm)
General data of the cover frame
Dimensions
Weight3
MaterialAluminum
⁄16in. x 1 ft. 115⁄16in. x 3 ft.3⁄4in.
(90.5 mm x 354 mm x 1137 mm)
1
⁄3lbs. (3.1 kg)
25
/32in. x 1 ft. 55⁄16in. x 4 ft.
(20 mm x 440 mm x 1 217 mm)
1
⁄3lbs. (1.5 kg)
Installation GuideFMK20-30HFUS-eng-IUS11161027
Page 28
ContactSMA America, LLC
7Contact
Should you experience any technical problems with our products, contact the SMA Serviceline. We
require the following information in order to provide you with the necessary assistance:
• Inverter type
• Type and number of modules connected
• Way of communication
• Sunny Boy failure or warning number
• Display message of the Sunny Boy
SMA America, LLC
6020 West Oaks Blvd, Ste 300
Rocklin, CA 95765
Tel. +1 916 625 0870
Tel. +1 877-MY SMA TECH
Tel. +1 877 697 6283 (Toll free, available for USA, Canada and Puerto Rico)
Fax +1 916 625 0871
Service@SMA-America.com
www.SMA-America.com
SMA Solar Technology Canada Inc.
2425 Matheson Blvd E, 8th Floor
Mississauga, ON L4W 5K5, Canada
Tel. +1 877 506 1756 (Toll free, available for Canada)
Service@SMA-Canada.ca
www.SMA-Canada.ca
28FMK20-30HFUS-eng-IUS111610Installation Guide
Page 29
Page 30
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